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Rate coefficients for rovibrational transitions in H2 due to collisions with He

N. Balakrishnan, M. Vieira, J. F. Babb, R. C. Forrey, A. Dalgarno, S. Lepp

astro-pharXiv:astro-ph/9904376

Abstract

We present quantum mechanical and quasiclassical trajectory calculations of cross sections for rovibrational transitions in ortho- and para-H2 induced by collisions with He atoms. Cross sections were obtained for kinetic energies between 10-4 and 3 eV, and the corresponding rate coefficients were calculated for the temperature range 100<T<4000 K. Comparisons are made with previous calculations.

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